#include <algorithm>
#include <iostream>
#include <numeric>
#include <string>
#include <tuple>
#include <utility>
#include <vector>

#define rep(i, a, b) for (int i = int(a); i < int(b); i++)
using namespace std;
using ll = long long int;
using P = pair<ll, ll>;

// clang-format off
#ifdef _DEBUG_
#define dump(...) do{ cerr << __LINE__ << ":\t" << #__VA_ARGS__ << " = "; debug_print(__VA_ARGS__); } while(false)
template<typename T, typename... Ts> void debug_print(const T &t, const Ts &...ts) { cerr << t; ((cerr << ", " << ts), ...); cerr << endl; }
#else
#define dump(...) do{ } while(false)
#endif
template<typename T> vector<T> make_v(size_t a, T b) { return vector<T>(a, b); }
template<typename... Ts> auto make_v(size_t a, Ts... ts) { return vector<decltype(make_v(ts...))>(a, make_v(ts...)); }
template<typename T> bool chmin(T &a, const T& b) { if (a > b) {a = b; return true; } return false; }
template<typename T> bool chmax(T &a, const T& b) { if (a < b) {a = b; return true; } return false; }
template<typename T, typename... Ts> void print(const T& t, const Ts&... ts) { cout << t; ((cout << ' ' << ts), ...); cout << '\n'; }
template<typename... Ts> void input(Ts&... ts) { (cin >> ... >> ts); }
template<typename T> istream &operator,(istream &in, T &t) { return in >> t; }
// clang-format on

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n;
    input(n);
    int len = 1;
    while (len * len <= n) {
        len++;
    }
    vector<int> length;
    for (int i = 1; i < len; i += 2) {
        length.push_back(i);
    }
    for (int i = (len - 1) / 2 * 2; i >= 2; i -= 2) {
        length.push_back(i);
    }
    length.push_back(0);
    reverse(length.begin(), length.end());
    const int inf = 1 << 29;
    auto dp = make_v(len, n + 1, inf);
    dp[0][0] = 0;
    rep(i, 1, len) {
        int val = length[i];
        rep(j, val * val, n + 1) {
            if (dp[i - 1][j - val * val] < inf) {
                chmin(dp[i][j], dp[i - 1][j - val * val] + val);
            }
            if (dp[i][j - val * val] < inf) {
                chmin(dp[i][j], dp[i][j - val * val] + val);
            }
        }
        rep(j, 0, n + 1) {
            chmin(dp[i][j], dp[i - 1][j]);
        }
    }
    dump(dp[len - 1][n]);
    int sum = n, idx = len - 1;
    int zero = 0;
    auto display = [&](int l) {
        rep(i, 0, l) {
            cout << char((zero + i) % 2 + '0');
        }
        zero = (zero + l * l + 1) % 2;
    };
    while (sum > 0) {
        int val = length[idx];
        if (sum >= val * val && dp[idx][sum] == dp[idx][sum - val * val] + val) {
            display(val);
            sum -= val * val;
        } else if (sum >= val * val && dp[idx][sum] == dp[idx - 1][sum - val * val] + val) {
            display(val);
            sum -= val * val;
            idx--;
        } else {
            idx--;
        }
    }
    cout << endl;
    return 0;
}